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Swapping the rear pullies on a 112?

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Old Sep 21, 2009 | 09:23 AM
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Default Swapping the rear pullies on a 112?

Can you do it? It looks like you there might be enough clearance and it should get you a lb or two without dropping to a smaller front pulley. has anyone done it?
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Old Sep 21, 2009 | 01:06 PM
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FWIW its a CTS-V setup. Im thinking if I can get leave the main shaft pulley the same and either get another one so its 1 to 1 or maybe a slightly smaller one. looks like itll take some grinding on the cover and lower section to actually flip them...
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Old Sep 21, 2009 | 01:40 PM
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Yes you can do it. A corvette guy did it, but sent it to Magnuson to have it done. He just changed to a set of cogs. That's what you should look into!
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Old Sep 21, 2009 | 02:12 PM
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I dont think we need cogs just yet but it would allow for a smaller pulley on the rotor without ever worrying about slipage... who makes it? any sponsors here?
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Old Sep 21, 2009 | 11:04 PM
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What psi are you running now? I know MTI puts smaller pulleys on their kit to up the boost.
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Old Sep 22, 2009 | 07:17 AM
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We saw 5lbs once... With the cam and the exhaust its just not building enough boost. I'd like to see 8lbs out of it.
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